Python显示文字

import tkinter

tk=tkinter.Tk()

canvas = tkinter.Canvas(tk,width=500,height=500)

canvas.pack()

canvas.create_text(150, 150, text='He said, "It\'s my curse,',font=('Times', 15))

canvas.create_text(200, 200, text='But it could be worse,',font=('Helvetica', 20))

canvas.create_text(220, 250, text='My cousin rides round',font=('Courier', 22))

canvas.create_text(220, 300, text='on a goose."', font=('Courier', 30))